Bearing



Jan. 23, 1934. E A. LUNDVALL 1,944,291

BEARING Filed Feb. 5, 1951 l ATTO NEY Patented Jen. V23; '1934 BEARING Erikalbin Lunaven, steekhelm, sweden. as-

signor, by mesne assignments, to Electrolux Corporation, a corporation of. Delaware Application February 5,

. and in 1931,y Serial No. 513,675,

February 5, 1930 s (ci. aos-ies) This invention relates to bearings and more particularly to bearings having axial displacement within abore adapted to receive the same and wherein one of the bearing rings orraces is heldfast between two disc shaped cover members or the like.

The object of the invention is to provide a construction which will facilitate'assembly of such a displaceable bearing in position without the possibility of damage to the elements of the bearing by careless handling.

In accordance with the present invention the disc shaped members are held resiliently together by the insertion of resilient intermediate `members.

The invention will be hereinafter more .particularly described with reference 'to the accompanying drawing, in which:

Fig. 1 shows a. vacuum cleaner iltted4 with a ball bearing mounting in accordance with the invention. Fig. 2. shows in section on a larger scalethe ball bearing yillustrated in Fig. 1.- f

Referring to the drawing, 10 indicates a vacuum cleaner of known construction, 'the motor shaft 11'of which'is rotatably, carried in ball bearings. The rear ball bearing 12 includesan inner ring 9'. an outer ring 14, and balls 8 between the rings and is in known manner mounted for motor housing or supporting member 13. The lateral faces of outer bearing ring or race 14er the ball bearing 12 are grippedtightly between two cover members 15 and 16 so that the ring 14 .i variation in length o f the shaft 11, be displaced within the bore ofthehousing` 13 which receives the ball bearing. Cover members 15 and 16 are held together by means of -tie members such as screw bolts 1'7 which are also loosely mounted for displacement in'bores 418 formed in the housing or support 13.

In order to avoid any .members 15 andl due to tension during the assembly ofthe bearing, a spring 19 is introduced between the .cover '16 andthe heads ofthe screw bolts 1.7. In the illustrated embodiment spring is shown as a plate spring. are,

. as illustrated eeen eonstructed'wltn'ashemder so pletely ilattenedyout the 16 onl sci-'flligupthebelts'1',

' e object of spring 19 is to prevent thelperlphaxial displacement within an aperture 'I in the together with said covermembers can. onanyl ion of the cover 20 which prevents the spring 19f'rom beingz com bearing. Spring 19 hasa further object in regui lating the pressure which is exertedy bythe cover 16 on the outer bali ring 14 `and moreover distributes said pressure as uniformly 'as ,possible over the whole periphery of the ring. For this lat- .ter purpose it is advantageous tocause the spring 19 to lie only with its central portion against th cover 16.

l1. A shaft bearing and mounting comprising a .65 irst bearing ring, a second bearing ring. bearing members between said rings, said rings having lateralfaceS, a rst cover member on oneside ofsaid rings, a second cover member on the other side of said rings, and means for, holding the cover members against the opposite lateral faces of one oi said rings comprising tie members xed to said irst cover member and loose with respect tosaid second cover member and a plate spring stressed between said second cover member and said tie members.

2. A shaft bearing and mounting comprising a rst bearing ring, a second bearingring, bearingl members between said rings, said rings having lateral faces, a rstcover member on one side of said rings, ra second cover member on the other side of said rings, and means for holding the c over members against the opposite lateral faces of one of said rings comprising tie members xed to said first cover/member and loose with respect to said second cover member and resilient means stressed between said second coverrmemberand said tie members and contacting the central. portion of said second cover member to. distribute force tliereagainst. 90

3. A lshaft bearing and mounting comprising ,a first ring, a second bearingring, bearing 'members'between saidrings, said rings havlateral faces. a iirst cover memberon .one

side of said rings, a second cover member on the other side of said rings,l and means for holdingr the cover members against the opposite lateral faces of one of :said rings comprising tie members ilxed to said ilrst covermember and loose with respect to said second cover member 'and a plate spring lstressed between said second cover mem- -ber and said tie members and contacting the portion of saidsecond vcover member to distribute force thereagainst.- cmprisinsa 4. A shaft bearing and mounting ring, a second bearing members between said rings, said 'rings having'lateral lacesfa rstcover. member on one los `mae of marinus.; second cover member on the' r other eide of said rings, `said nrst'cover'member 110 formed with spaced threaded recesses and said second cover member formed with correspondingly spaced openings therethrough, and meansfor holding the cover members against the opposite lateral faces of one of said rings comprising bolts extending loosely through the openings in said second cover member and having threaded ends for' engagementwith the recesses in said first cover member, shoulders formed on said 5. A shaft bearing and mounting comprising asupporting member having a main aperture extending therethrough. bearing structure mounted in said aperture and having axial movement therein comprising inner and outer bearing rings and bearing members between said rings, a first cover memberon one side of said supporting member and said rings, a second cover member on the other side of said supporting member and,v said rings, and means for holding the cover mem-j.y lbers against the opposite lateral faces of one of said rings comprising tie members fixed tosaid rst cover member and extending loosely through openings in said supporting member and in said second cover member, and resilient means stressed between said tie members and said second cover member, said cover members being spaced apart a distance greater than the width in axial direction of said supporting member whereby said cover members may have axial movement with respect to said supporting member.

6. A shaft bearing and mounting comprising a supporting member having a main aperture extending therethrough, bearing structure mounted in said aperture and having axial movement therein comprising inner and outer bearing rings and bearing members between said rings, a first cover member on one side of said supporting member and said rings, a second cover member on the other side-of s aid supporting member and said rings,A` and means for holding the cover membersagain'st the opposite lateral faces of one of said rings comprising tie members fixed to said nrst cover member and extending loosely through openings in said supporting member and in said second cover member, and resilient means stressed between said tie members and said second cover member and contacting the central portion of said second cover member. said cover rmembers being spaced apart a distance greater than theJ width in axial direction of said supporting member whereby said cover members may have axial movement with respect to said supporting member.

7. A shaft bearing and mounting comprising a supporting member having a main aperture extending therethrough, bearing structure mounted in said aperture and having axial movement therein comprising inner and outer bearing rings and bearing `members between said rings, a rst 'cover member on one side of said supporting member and said rings, a second cover member on the other side o f said supporting member and said rings, and means for holding the cover members against the opposite lateral faces of one of said rings comprising tie members fixed to said first cover member and extending loosely through openings in said supporting member' and in said second cover member, and a plate spring stressed between said tie members and said second cover `member and contacting the central portion of said second cover member, said cover members being spaced apart a distance greater than the Width in axial direction of said supporting mem- A ber whereby said cover members may have axial movement with respect to said supporting members. I

8; `A shaft bearing and mounting comprising a supporting member having a main aperture ex- Ytending therethrough, bearing structure mountedv in said aperture and -having axial movement therein comprising inner and outer bearing rings and rolling members between said rings, anda member forminga housing for said bearing structure comprising cover members Aaxially to each side of the bearing structure, said cover members being constructed to bear against the lateral faces of the outer bearing ring and having iianges extending to each side of said supporting member, said lflanges being spaced apart a distance greater than the width in axial direction of said sup-y porting member with the cover members contact-v ing the outer bearing ring, and means for urging said cover members .toward each other comprising axially extending tie members secured in one of said cover members and passing loosely through openings in said supporting member and loosely through the other cover member and a resilient member stressed between a plurality of tie members and the cover member through which the tie members pass, whereby the bearing structure, cover members, ltie members and the resilient member are movable axially with the shaft in said main aperture.

ERIK ALBIN LUNDVALL. 

